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Physics Programs & Projects

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Neutron Interferometry with Polarized Neutrons as an Additional Degree of Freedom
Last Updated Date: 08/06/2015

Our goal is to apply Quantum Information Processing techniques to improve neutron interferometry contrast by making our final measurement … more

Use of Quantum Error Coding in a 4-Blade Neutron Interferometer
Last Updated Date: 08/06/2015

We have designed a new type of neutron interferometer, which will be less sensitive to slow vibrations.

High-Resolution Atomic Spectroscopy
Last Updated Date: 08/04/2015

Accurate measurements of atomic wavelengths, energy levels, oscillator strengths and isotope and hyperfine structure using diffraction grating … more

Designing the Nanoworld: Nanostructures, Nanodevices, and Nanooptics
Last Updated Date: 08/04/2015

Nano and atomic scale theory of the electronic, optical and mechanical properties of ultrasmall structures, such as semiconductor quantum dots and … more

Development of Epoxy Based Ge-68 Standard Phantom Sources
Last Updated Date: 08/04/2015

The use of imaging data for staging of disease, treatment planning, and monitoring of patient response continues to increase. In these types of … more

FPGA-based Triple-to-Double Coincidence Ratio Liquid Scintillation Counting
Last Updated Date: 08/04/2015

The triple-to-double coincidence ratio (TDCR) method of liquid scintillation counting employs three detectors to facilitate the experimental … more

Standards for Clinical Radionuclide Calibrators
Last Updated Date: 08/04/2015

NIST maintains a collection of dose calibrators and develops and reports on secondary activity standards for imaging and therapeutic nuclides.

Micelle Effects in Liquid Scintillation Counting
Last Updated Date: 08/04/2015

Liquid scintillation counting (LSC) techniques underlie many of the primary activity measurements at NIST and other national metrology institutes. … more

High-Resolution X-ray Spectroscopy
Last Updated Date: 08/04/2015

We are pursuing a program of x-ray spectroscopy of highly-charged ions and plasmas using custom-designed and constructed curved crystal … more

Enhanced X-Ray Imaging
Last Updated Date: 08/04/2015

This project pursues enhanced x-ray image acquisition and analysis methods that are applicable to, for example, security and medical applications … more

Vision science
Last Updated Date: 08/03/2015

The Vision Science program was established to develop new photometric and colorimetric standards based on vision science to facilitate development … more

Electron-Beam Irradiation of Solar Cells
Last Updated Date: 07/29/2015

The Dosimetry Group operates a system capable of performing electron beam processing, which consists of a Van de Graaff electron accelerator and a … more

Spectral irradiance and radiance responsivity calibrations using uniform sources (SIRCUS)
Last Updated Date: 07/27/2015

SIRCUS is a reference facility for the calibration of detectors and radiometers for spectral irradiance responsivity and spectral radiance … more

New Manganese Sulfate Bath
Last Updated Date: 07/27/2015

Many neutron sources required by Homeland Security have a lower neutron emission rate than is appropriate for the NIST calibration facility, a … more

Fabry-Perot Displacement Interferometry
Last Updated Date: 07/27/2015

High-resolution Fabry-Perot interferometry is being developed and employed for demanding applications in mechanical displacement metrology.

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